you must get jboss seam from CVS and after all works fine for jboss 4.2.0GA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4049701#4049701 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4049701